| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |
epidemiology ep·i·de·mi·ol·o·gy (ěp'ĭ-dē'mē-ŏl'ə-jē, -děm'ē-)
n.
The branch of medicine that deals with the study of the causes, distribution, and control of disease in populations.
| epidemiology (ěp'ĭ-dē'mē-ŏl'ə-jē) Pronunciation Key
The scientific study of the causes, distribution, and control of disease in populations. |